Sul-Po-Mag

DescriptionOtherwise known as sulfate of potash, magnesia, Sul-Po-Mag is a natural mineral salt, typically containing 22% potash, 11% magnesium, and 23% sulfur. A good source of potash where plenty of calcium already exists. Alliums like it.

Application rates1/2-1 lb per 100 sq.ft based on indications of soil test.